9–13 oct. 2023
Le Bois-Marie
Fuseau horaire Europe/Paris

Kolyvagin’s Conjecture and Iwasawa Theory

11 oct. 2023, 12:15
1h
Centre de conférences Marilyn et James Simons (Le Bois-Marie)

Centre de conférences Marilyn et James Simons

Le Bois-Marie

35, route de Chartres 91440 Bures-sur-Yvette

Orateur

Prof. Giada Grossi (CNRS, University Sorbonne Paris Nord)

Description

Let E be a rational elliptic curve and p be an odd prime of good ordinary reduction for E. In 1991 Kolyvagin conjectured that the system of cohomology classes derived from Heegner points on the p-adic Tate module of E over an imaginary quadratic field K is non-trivial. I will talk about joint work with A. Burungale, F. Castella, and C.Skinner, where we prove Kolyvagin's conjecture in the cases where an anticyclotomic Iwasawa Main Conjecture for E/K is known. Moreover, our methods also yield proof of a refinement of Kolyvagin's conjecture expressing the divisibility index of the Heegner point Kolyvagin system in terms of the Tamagawa numbers of E. One of the proof’s key ingredients, which I will focus on during the talk, is a refinement of the Kolyvagin system argument for (anti-cyclotomic) twists of E studied by Jan Nekovář.

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